专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09343933B2 Rotating electric machine 有权
标题翻译：旋转电机
公开(公告)号：US09343933B2
公开(公告)日：2016-05-17
申请号：US14258169
申请日：2014-04-22
申请人： Mitsubishi Electric Corporation
发明人： Hitoshi Isoda , Masaya Inoue , Shinji Nishimura , Moriyuki Hazeyama , Tomoya Tachibana
IPC分类号： H02K1/27
CPC分类号： H02K1/2766 , H02K2201/06 , H02K2213/03
摘要： A rotating electric machine includes a rotor including: a rotor core divided into blocks in an axial direction, the blocks being arranged to have a phase angle therebetween in a circumferential direction, the rotor core having magnet through holes arrayed in the circumferential direction and formed in an outer circumferential region; and permanent magnets inserted into the magnet through holes. The magnet through hole includes: a magnet insertion portion into which the permanent magnet is inserted; and a non-magnetic portion provided on an outer side of the magnet insertion portion in the circumferential direction. A bridge portion is formed between the outer circumferential surface and an outer circumferential inner wall of the non-magnetic portion. A bridge angle, which is an angle between both circumferential ends of the bridge portion with a rotation center of the rotor core set as a vertex, is larger than a skew angle.
摘要翻译：旋转电机包括转子，该转子包括：沿轴向分为块体的转子铁芯，所述块体在圆周方向上具有相位角，所述转子铁芯具有沿圆周方向排列的磁体通孔，并形成在外周区域; 永久磁铁插入到磁铁通孔内。磁体通孔包括：永磁体插入其中的磁体插入部分; 以及设置在磁体插入部的周向的外侧的非磁性部。在非磁性部的外周面与外周内壁之间形成有桥部。作为设置为顶点的转子铁芯的旋转中心的桥接部的两个周向端部之间的角度的桥角大于倾斜角度。

2. 发明授权

US11309817B2 Control device of rotating machine, and control device of electric vehicle 有权
公开(公告)号：US11309817B2
公开(公告)日：2022-04-19
申请号：US17284996
申请日：2018-12-06
申请人： Mitsubishi Electric Corporation
发明人： Tomoya Tachibana , Yoshihiko Kimpara
IPC分类号： H02P21/00 , H02P21/18 , H02P21/22
摘要： Provided is a control device for a rotating machine including a magnetic pole position estimation unit, a vector calculation unit, a current command correction unit configured to correct a first d-axis current command and a first q-axis current command, to thereby output a second d-axis current command and a second q-axis current command, a voltage application unit configured to superimpose a high-frequency voltage including a specific frequency component on voltage commands on rotational coordinates. The magnetic pole position estimation unit is configured to estimate the position of the magnetic pole based on a state quantity of the specific frequency component. The current command correction unit is configured to correct the current commands so that a current amplitude of electrical angle frequency components is equal to or larger than a half of a current amplitude of the specific frequency component.

3. 发明授权

US09871483B2 Controller for rotary electric machine drive apparatus 有权
公开(公告)号：US09871483B2
公开(公告)日：2018-01-16
申请号：US15218600
申请日：2016-07-25
申请人： Mitsubishi Electric Corporation
发明人： Masahiro Iezawa , Noriyuki Wada , Hideaki Kawamoto , Daiki Matsuura , Tomoya Tachibana
IPC分类号： H02H7/09 , H02P29/032 , H02P27/08
CPC分类号： H02P29/032 , H02P5/74 , H02P27/08
摘要： There is provided a controller for a rotary electric machine drive apparatus capable of reducing data-processing load and amount of memories required for a data processing which calculates a voltage command value of the converter which reduces power loss. A controller calculates the required minimum voltage which is required in the case of performing a maximum torque/current control is calculated; calculates a converter loss coefficient which is a coefficient of a polynomial representing a power loss characteristic of the converter; calculates an inverter loss coefficient which is a coefficient of a polynomial representing a power loss characteristic of the inverter; calculates a sum total of loss coefficients for each order of polynomials; calculates the low loss voltage which the sum total power loss becomes a minimum, based on the sum total loss coefficients for each order; sets to the voltage command value of the converter.

4. 发明授权

US11881804B2 Rotating electric machine drive device 有权
公开(公告)号：US11881804B2
公开(公告)日：2024-01-23
申请号：US17296319
申请日：2018-11-29
申请人： Mitsubishi Electric Corporation
发明人： Hideaki Kawamoto , Tomoya Tachibana , Matahiko Ikeda , Yoshihiko Kimpara
IPC分类号： H02P29/68 , H02P27/06
CPC分类号： H02P29/68 , H02P27/06 , H02P2201/09
摘要： Provided is a drive device for a rotating electric machine, including: a power conversion unit configured to convert DC power supplied from a storage battery into AC power, and to supply the AC power to a rotating electric machine; and a control unit output a switching signal to the power conversion unit. The control unit is configured to set, when the storage battery is to be charged, in a case in which a temperature of the storage battery input from an outside is lower than a set temperature suitable for charging, the switching signal for the power conversion unit so as to be different from the switching signal in a normal drive state of the rotating electric machine.

5. 发明申请

US20150270752A1 PERMANENT-MAGNET-TYPE ROTATING ELECTRIC MECHANISM 有权
标题翻译：永磁式旋转电机
公开(公告)号：US20150270752A1
公开(公告)日：2015-09-24
申请号：US14435647
申请日：2013-12-09
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Toshinori Tanaka , Tomoya Tachibana , Eigo Totoki
IPC分类号： H02K1/27
CPC分类号： H02K1/2773 , H02K1/2766 , H02K2213/03
摘要： A rotor core includes low permeability areas having lower permeability than that of a material of the rotor core, between an outer circumference of each magnetic pole and a side surface of each permanent magnet. The low permeability areas are formed asymmetrically with respect to a geometric center of each magnetic pole so that a magnetic center of the magnetic pole is displaced toward one side with respect to the geometric center. The rotor cores are placed upside down relative to each other so that a relative position in the circumferential direction of the low permeability areas with respect to the permanent magnets differs.
摘要翻译：转子芯包括在每个磁极的外周和每个永磁体的侧表面之间的具有比转子芯的材料低的磁导率的低磁导率区域。低磁导率区域相对于每个磁极的几何中心不对称地形成，使得磁极的磁心相对于几何中心朝向一侧移位。转子芯相对于彼此被倒置放置，使得相对于永磁体的低磁导率区域的圆周方向上的相对位置不同。

6. 发明申请

US20150270750A1 PERMANENT MAGNET TYPE ROTATING ELECTRIC MACHINE 有权
标题翻译：永磁式旋转电机
公开(公告)号：US20150270750A1
公开(公告)日：2015-09-24
申请号：US14434865
申请日：2013-12-09
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Eigo Totoki , Toshinori Tanaka , Tomoya Tachibana
IPC分类号： H02K1/27
CPC分类号： H02K1/278 , H02K1/276 , H02K2201/06
摘要： In conventional rotors having a shape in which permanent magnets are skewed, a configuration in which, for example, the thicknesses of both ends of each magnet are increased is used in order to make the rotors symmetric between the forward and reverse directions, thereby causing excessive increase in the thicknesses.In a rotor 2 in which permanent magnets form magnet poles and the permanent magnets are skewed with respect to the axial direction, the thickness of each permanent magnet is increased at a portion that is most likely to be demagnetized, that is, a positive side portion F in a rotor part 2A skewed in the positive direction and a negative side portion F in a rotor part 2B skewed in the negative direction, whereby a demagnetization resistance strengthened portion is formed.
摘要翻译：在具有永久磁铁歪斜形状的常规转子中，使用例如每个磁体的两端的厚度增加的结构，以使转子在正向和反向之间对称，由此导致过大增加厚度。在其中永久磁铁形成磁极并且永磁体相对于轴向倾斜的转子2中，每个永磁体的厚度在最可能被去磁的部分，即正侧部分在正方向上倾斜的转子部件2A中的F，在转子部分2B中沿负方向倾斜的负侧部分F形成消磁阻力增强部分。

7. 发明授权

US10348231B2 Motor control device and motor control method 有权
公开(公告)号：US10348231B2
公开(公告)日：2019-07-09
申请号：US15259501
申请日：2016-09-08
申请人： Mitsubishi Electric Corporation
发明人： Tomoya Tachibana , Masahiro Iezawa , Daiki Matsuura , Noriyuki Wada
IPC分类号： H02P6/14 , H02P21/22 , H02P27/08
摘要： A motor control device includes a current detector which, in generating a feedback current value on the basis of the detection result of a three-phase AC current supplied from an inverter to a motor, generates a first current detection value based on a first sample timing and a second current detection value based on a second sample timing that is shorter than the first sample timing; a coordinates converter which converts the coordinates of the first current detection value and the second current detection value to q and d axes; and a detection current processor which generates a feedback current value from the coordinate conversion results.

8. 发明授权

US09912204B2 Permanent magnet type rotating electric machine 有权
公开(公告)号：US09912204B2
公开(公告)日：2018-03-06
申请号：US14434865
申请日：2013-12-09
申请人： Mitsubishi Electric Corporation
发明人： Eigo Totoki , Toshinori Tanaka , Tomoya Tachibana
IPC分类号： H02K1/27
CPC分类号： H02K1/278 , H02K1/276 , H02K2201/06
摘要： In conventional rotors having a shape in which permanent magnets are skewed, a configuration in which, for example, the thicknesses of both ends of each magnet are increased is used in order to make the rotors symmetric between the forward and reverse directions, thereby causing excessive increase in the thicknesses.In a rotor 2 in which permanent magnets form magnet poles and the permanent magnets are skewed with respect to the axial direction, the thickness of each permanent magnet is increased at a portion that is most likely to be demagnetized, that is, a positive side portion F in a rotor part 2A skewed in the positive direction and a negative side portion F in a rotor part 2B skewed in the negative direction, whereby a demagnetization resistance strengthened portion is formed.

9. 发明授权

US09716411B2 Permanent-magnet-type rotating electric mechanism 有权
公开(公告)号：US09716411B2
公开(公告)日：2017-07-25
申请号：US14435647
申请日：2013-12-09
申请人： Mitsubishi Electric Corporation
发明人： Toshinori Tanaka , Tomoya Tachibana , Eigo Totoki
IPC分类号： H02K1/27
CPC分类号： H02K1/2773 , H02K1/2766 , H02K2213/03
摘要： A rotor core includes low permeability areas having lower permeability than that of a material of the rotor core, between an outer circumference of each magnetic pole and a side surface of each permanent magnet. The low permeability areas are formed asymmetrically with respect to a geometric center of each magnetic pole so that a magnetic center of the magnetic pole is displaced toward one side with respect to the geometric center. The rotor cores are placed upside down relative to each other so that a relative position in the circumferential direction of the low permeability areas with respect to the permanent magnets differs.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式